We report a case of severe human cryptosporidiosis caused by Cryptosporidium tyzzeri and C. parvum with an unusually high frequency of liquid stools. Wild mice were the most likely source of infection, demonstrating the potential for wild-mouse-borne Cryptosporidium to infect humans and highlighting the health risks associated with synantropic rodents.

University of South Bohemia Faculty of Agriculture České Budějovice Czech Republic

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